44
I/O Response Time Characteristics
Section 2-5
Maximum I/O Response
Time
The following timing chart shows the maximum I/O response time.
The maximum I/O response time is the total of the following terms:
T
MAX
= IN + T
S
+ T
M-in-max
+ T
PLC
×
2 + T
M-out-max
+ T
S
+ OUT
T
MAX
:
Maximum I/O response time
T
PLC
:
PLC’s cycle time
IN:
Input delay in the Slave (Refer to
OUT:
Output delay in the Slave (Refer to
T
S
:
Communications cycle time
PLC cycle
Master Unit processing
Communications cycle
Input
Output
Slave
processing
Maximum I/O response time (T
MAX
)
Ts
T
PLC
TM-out-min
IN
T
PLC
TM-in-max
Ts
OUT
Master
Usable node
number setting
Communications cycle time
High-speed
Communica-
tions Mode
Long-distance
Communica-
tions Mode
CS-series, C200HX/
C200HG/C200HE-
(Z)E, and C200HS
Master Unit, CS-
series Master Unit, or
CJ-series Master Unit
IN0 to IN7 and
OUT0 to OUT7
500
µ
s
4,000
µ
s
IN0 to IN15 and
OUT0 to OUT15
800
µ
s
6,000
µ
s
CQM1
IN0 to IN1 and
OUT0 to OUT1
500
µ
s
4,000
µ
s
IN0 to IN3 and
OUT0 to OUT3
IN0 to IN7 and
OUT0 to OUT7
IN0 to IN15 and
OUT0 to OUT15
800
µ
s
6,000
µ
s